DEFINITION of 'Regulation E'. A regulation set forth by the Federal Reserve. Regulation E outlines the rules and procedures for electronic funds transfers (EFTs) and outlines guidelines for those who sell and issue electronic debit cards. Rules pertaining to consumer liability for unauthorized card usage fall under this regulation as well. Next Up.
Essaim. Essaim is a French military reconnaissance microsatellite constellation. Its main purpose is to collect and map signals intelligence across the world. The DGA describes it as a vacuum cleaner for [radio] waves.
What's a Chiasm? A chiasm (or chiasmus if you rather) is a writing style that uses a unique repetition pattern for clarification and/or emphasis. Chiasm is pronounced kyâ²-az-um. Often called the chiastic (kyâ²-az-tic) approach or the chiastic structure, this repetition form appears throughout the Bible yet it is not well known.